Merge remote-tracking branch 'upstream/main' into usermaps

.github/workflows/build.yml

@@ -79,7 +79,7 @@ jobs:
     name: Deploy artifacts
     needs: build
     runs-on: ubuntu-latest
-    if: github.event_name == 'push' && (github.ref == 'refs/heads/main' || github.ref == 'refs/heads/develop')
+    if: github.repository_owner == 'momo5502' && github.event_name == 'push' && (github.ref == 'refs/heads/main' || github.ref == 'refs/heads/develop')
     steps:
       - name: Setup environment
         run: echo "BOIII_MASTER_PATH=${{ secrets.BOIII_MASTER_SSH_PATH }}" >> $GITHUB_ENV
@@ -96,7 +96,7 @@ jobs:
         uses: actions/download-artifact@v3.0.2
         with:
           name: Release Binary
-          
+
       - name: Download Release data artifacts
         uses: actions/download-artifact@v3.0.2
         with:
@@ -107,7 +107,7 @@ jobs:
         uses: shimataro/ssh-key-action@v2.5.0
         with:
           key: ${{ secrets.BOIII_MASTER_SSH_PRIVATE_KEY }}
-          known_hosts: 'just-a-placeholder-so-we-dont-get-errors'
+          known_hosts: "just-a-placeholder-so-we-dont-get-errors"
 
       - name: Add known hosts
         run: ssh-keyscan -H ${{ secrets.BOIII_MASTER_SSH_ADDRESS }} >> ~/.ssh/known_hosts

.github/workflows/discord-notify.yml

@@ -0,0 +1,17 @@
+name: Notify Discord
+
+on:
+  push:
+    branches:
+      - "*"
+  issues:
+
+jobs:
+  notify:
+    runs-on: ubuntu-latest
+    if: github.repository_owner == 'momo5502'
+    steps:
+      - name: Send notification to Discord
+        uses: Ilshidur/action-discord@master
+        env:
+          DISCORD_WEBHOOK: ${{ secrets.DISCORD_CI_BOT_WEBHOOK }}

deps/asmjit

@@ -1 +1 @@
-Subproject commit 915186f6c5c2f5a4638e5cb97ccc23d741521a64
+Subproject commit 1098b7d8873777f281e54a84a2b422fec30d91d4

deps/curl

@@ -1 +1 @@
-Subproject commit ad4997e5b289c97724fdcbaeb3c8c50222a757c4
+Subproject commit 93eefa6ba134aceef4f6cd51fc602319b382e629

deps/rapidjson

@@ -1 +1 @@
-Subproject commit 012be8528783cdbf4b7a9e64f78bd8f056b97e24
+Subproject commit 083f359f5c36198accc2b9360ce1e32a333231d9

src/client/component/name.cpp

@@ -0,0 +1,103 @@
+#include <std_include.hpp>
+#include "loader/component_loader.hpp"
+
+#include "name.hpp"
+#include "steam_proxy.hpp"
+#include "command.hpp"
+
+#include <utils/nt.hpp>
+#include <utils/string.hpp>
+#include <utils/properties.hpp>
+#include <utils/concurrency.hpp>
+
+namespace name
+{
+	namespace
+	{
+		utils::concurrency::container<std::string> player_name{};
+
+		void store_player_name(const std::string& name)
+		{
+			utils::properties::store("playerName", name);
+		}
+
+		void activate_player_name(std::string new_name)
+		{
+			player_name.access([&](std::string& name)
+			{
+				name = std::move(new_name);
+			});
+		}
+
+		void update_player_name(const std::string& new_name)
+		{
+			store_player_name(new_name);
+			activate_player_name(new_name);
+		}
+
+		void setup_player_name()
+		{
+			std::string initial_name = steam_proxy::get_player_name();
+
+			if (initial_name.empty())
+			{
+				initial_name = utils::nt::get_user_name();
+			}
+
+			if (initial_name.empty())
+			{
+				initial_name = "Unknown Soldier";
+			}
+
+			update_player_name(initial_name);
+		}
+
+		void load_player_name()
+		{
+			const auto stored_name = utils::properties::load("playerName");
+
+			if (stored_name)
+			{
+				activate_player_name(*stored_name);
+			}
+			else
+			{
+				setup_player_name();
+			}
+		}
+	}
+
+	struct component final : client_component
+	{
+		void post_load() override
+		{
+			load_player_name();
+		}
+
+		void post_unpack() override
+		{
+			command::add("name", [](const command::params& params)
+			{
+				if (params.size() != 2)
+				{
+					return;
+				}
+
+				update_player_name(params[1]);
+			});
+		}
+
+		component_priority priority() const override
+		{
+			return component_priority::name;
+		}
+	};
+
+	const char* get_player_name()
+	{
+		const auto name = player_name.copy();
+		return utils::string::va("%.*s", static_cast<int>(name.size()), name.data());
+	}
+}
+
+REGISTER_COMPONENT(name::component)

src/client/component/name.hpp

@@ -0,0 +1,6 @@
+#pragma once
+
+namespace name
+{
+	const char* get_player_name();
+}

src/client/component/network.cpp

@@ -265,6 +265,9 @@ namespace network
 
 			// Kill lobby system
 			handle_packet_internal_hook.create(game::select(0x141EF7FE0, 0x1404A5B90), &handle_packet_internal_stub);
+
+			// Kill voice chat
+			utils::hook::set<uint32_t>(game::select(0x141359310, 0x14018FE40), 0xC3C03148);
 		}
 	};
 }

src/client/component/party.cpp

@@ -194,14 +194,18 @@ namespace party
 
 		void connect_stub(const char* address)
 		{
-			const auto target = network::address_from_string(address);
+			if (address)
-			if (target.type == game::NA_BAD)
 			{
-				return;
+				const auto target = network::address_from_string(address);
+				if (target.type == game::NA_BAD)
+				{
+					return;
+				}
+
+				connect_host = target;
 			}
 
-			connect_host = target;
+			query_server(connect_host, handle_connect_query_response);
-			query_server(target, handle_connect_query_response);
 		}
 
 		void send_server_query(server_query& query)

src/client/component/steam_proxy.cpp

@@ -7,6 +7,8 @@
 #include <utils/finally.hpp>
 #include <utils/concurrency.hpp>
 
+#include "game/utils.hpp"
+
 #include "steam/interface.hpp"
 #include "steam/steam.hpp"
 
@@ -252,7 +254,7 @@ namespace steam_proxy
 			return client_friends.invoke<const char*>("GetPersonaName");
 		}
 
-		return "boiii";
+		return "";
 	}
 
 	void update_subscribed_items()

src/client/component/steam_proxy.hpp

@@ -1,5 +1,7 @@
 #pragma once
 
+#include <utils/nt.hpp>
+
 namespace steam_proxy
 {
 	const utils::nt::library& get_overlay_module();

src/client/game/symbols.hpp

@@ -10,7 +10,8 @@ namespace game
 
 	// CL
 	WEAK symbol<void(int controllerIndex, XSESSION_INFO* hostInfo, const netadr_t* addr, int numPublicSlots,
-	                 int numPrivateSlots, const char* mapname, const char* gametype, const char* somethingWithUserMaps)> CL_ConnectFromLobby
+	                 int numPrivateSlots, const char* mapname, const char* gametype,
+	                 const char* somethingWithUserMaps)> CL_ConnectFromLobby
 		{0x14134C570};
 
 	// Game
@@ -24,7 +25,9 @@ namespace game
 	WEAK symbol<void(eNetworkModes networkMode)> Com_SessionMode_SetNetworkMode{0x1420F75B0, 0x140500B80};
 	WEAK symbol<eGameModes(eGameModes gameMode)> Com_SessionMode_SetGameMode{0x1420F7570, 0x140500B40};
 	WEAK symbol<eModes(eModes mode)> Com_SessionMode_SetMode{0x1420F7570};
-	WEAK symbol<void(const char* gametype, bool loadDefaultSettings, bool isModified)> Com_GametypeSettings_SetGametype{0x1420F5980};
+	WEAK symbol<void(const char* gametype, bool loadDefaultSettings, bool isModified)> Com_GametypeSettings_SetGametype{
+		0x1420F5980
+	};
 	WEAK symbol<bool()> Com_IsRunningUILevel{0x142148350};
 	WEAK symbol<void(int localClientNum, eModes fromMode, eModes toMode, uint32_t flags)> Com_SwitchMode{
 		0x14214A4D0
@@ -81,7 +84,7 @@ namespace game
 	WEAK symbol<TLSData*()> Sys_IsDatabaseReady{0x142183A60};
 
 	// Unnamed
-	WEAK symbol<const char* (const char* name)> CopyString{0x1422AC220, 0x14056BD70};
+	WEAK symbol<const char*(const char* name)> CopyString{0x1422AC220, 0x14056BD70};
 
 	WEAK symbol<bool()> isModLoaded{0x1420D5020};
 	WEAK symbol<void(int, const char*, int)> loadMod{0x1420D6930};
@@ -95,9 +98,14 @@ namespace game
 	WEAK symbol<const char*(const dvar_t* dvar)> Dvar_GetString{0x1422BF590, 0x140575E30};
 	WEAK symbol<const char*(const dvar_t* dvar)> Dvar_DisplayableValue{0x1422BC080};
 	WEAK symbol<bool(const dvar_t* dvar)> Dvar_GetBool{0x1422BCED0};
-	WEAK symbol<dvar_t*(dvarStrHash_t hash, const char* dvarName, bool value, dvarFlags_e flags, const char* description)> Dvar_RegisterBool{
+	WEAK symbol<dvar_t*(dvarStrHash_t hash, const char* dvarName, bool value, dvarFlags_e flags,
+	                    const char* description)> Dvar_RegisterBool{
 		0x1422D0900
 	};
+	WEAK symbol<dvar_t*(dvarStrHash_t hash, const char* dvarName, const char* value, dvarFlags_e flags,
+	                    const char* description)> Dvar_RegisterString{
+		0x1422D0B70
+	};
 	WEAK symbol<void (void (*callback)(const dvar_t*, void*), void* userData)> Dvar_ForEach{0x1422BCD00};
 	WEAK symbol<void(const char* dvarName, const char* string, bool createIfMissing)> Dvar_SetFromStringByName{
 		0x1422C7500
@@ -108,7 +116,7 @@ namespace game
 	WEAK symbol<void()> UI_CoD_LobbyUI_Init{0x141F2BD80, 0x1404A1F50};
 	WEAK symbol<void()> UI_CoD_Shutdown{0x141F32E10, 0x0};
 	WEAK symbol<void(const char*, const char*, int, game::hks::lua_State*)> UI_AddMenu{0x1427018F0, 0x0};
-	WEAK symbol<const char* (int)> UI_CoD_GetRootNameForController{0x141F28940, 0x0};
+	WEAK symbol<const char*(int)> UI_CoD_GetRootNameForController{0x141F28940, 0x0};
 	WEAK symbol<void(game::hks::lua_State*, const char*)> Lua_CoD_LoadLuaFile{0x141F11A20, 0x0};
 	WEAK symbol<void(int localClientNum)> CG_LUIHUDRestart{0x140F7E970};
 	WEAK symbol<void(int localClientNum)> CL_CheckKeepDrawingConnectScreen{0x1413CCAE0};
@@ -122,7 +130,8 @@ namespace game
 	};
 	WEAK symbol<unsigned int(scriptInstance_t inst)> Scr_GetNumParam{0x0, 0x140171320};
 
-	WEAK symbol<void(const char* name, const char* key, unsigned int playbackFlags, float volume, void* callbackInfo, int id)> Cinematic_StartPlayback{0x1412BE3A0};
+	WEAK symbol<void(const char* name, const char* key, unsigned int playbackFlags, float volume, void* callbackInfo,
+	                 int id)> Cinematic_StartPlayback{0x1412BE3A0};
 	WEAK symbol<void(uint64_t id, bool cancelAll)> Cinematic_StopPlayback{0x1412BEA70};
 
 	// Rendering
@@ -136,10 +145,12 @@ namespace game
 	WEAK symbol<void*()> SV_AddTestClient{0x142248F40, 0x14052E3E0};
 	WEAK symbol<void(client_s* cl_0, svscmd_type type, const char* fmt, ...)> SV_SendServerCommand{0x0, 0x140537F10};
 	WEAK symbol<bool(int clientNum)> SV_IsTestClient{0x14224AB60, 0x14052FF40};
-	WEAK symbol<void(int controllerIndex, const char* server, MapPreload preload, bool savegame)> SV_SpawnServer{0x1422528C0, 0x140535B20};
+	WEAK symbol<void(int controllerIndex, const char* server, MapPreload preload, bool savegame)> SV_SpawnServer{
+		0x1422528C0, 0x140535B20
+	};
 
 	// Utils
-	WEAK symbol<const char* (char* str)> I_CleanStr{0x1422E9050, 0x140580E80};
+	WEAK symbol<const char*(char* str)> I_CleanStr{0x1422E9050, 0x140580E80};
 
 	// Variables
 	WEAK symbol<cmd_function_s> cmd_functions{0x15689DF58, 0x14946F860};
@@ -181,18 +192,26 @@ namespace game
 
 	namespace hks
 	{
-		WEAK symbol<lua_State*> lua_state {0x159C76D88, 0x14858C408};
+		WEAK symbol<lua_State*> lua_state{0x159C76D88, 0x14858C408};
 		WEAK symbol<void(lua_State* s, const char* str, unsigned int l)> hksi_lua_pushlstring{0x140A18430, 0x1401DE6F0};
 
-		WEAK symbol<void(lua_State* s, const HksObject* tbl, const HksObject* key, const HksObject* val)> hks_obj_settable{0x141D4B660, 0x1403F41B0};
+		WEAK symbol<void(lua_State* s, const HksObject* tbl, const HksObject* key, const HksObject* val)>
-		WEAK symbol<HksObject* (HksObject* result, lua_State* s, const HksObject* table, const HksObject* key)> hks_obj_gettable{0x141D4ABF0, 0x1403F3750};
+		hks_obj_settable{0x141D4B660, 0x1403F41B0};
-		WEAK symbol<void(lua_State* s, int nargs, int nresults, const unsigned int* pc)> vm_call_internal{0x141D70FE0, 0x140418E40};
+		WEAK symbol<HksObject*(HksObject* result, lua_State* s, const HksObject* table, const HksObject* key)>
-		WEAK symbol<HashTable* (lua_State* s, unsigned int arraySize, unsigned int hashSize)> Hashtable_Create{0x141D3B5F0, 0x1403E46D0};
+		hks_obj_gettable{0x141D4ABF0, 0x1403F3750};
-		WEAK symbol<cclosure* (lua_State* s, lua_function function, int num_upvalues, int internal_, int profilerTreatClosureAsFunc)> cclosure_Create{0x141D3B7E0, 0x1403E48C0};
+		WEAK symbol<void(lua_State* s, int nargs, int nresults, const unsigned int* pc)> vm_call_internal{
+			0x141D70FE0, 0x140418E40
+		};
+		WEAK symbol<HashTable*(lua_State* s, unsigned int arraySize, unsigned int hashSize)> Hashtable_Create{
+			0x141D3B5F0, 0x1403E46D0
+		};
+		WEAK symbol<cclosure*(lua_State* s, lua_function function, int num_upvalues, int internal_,
+		                      int profilerTreatClosureAsFunc)> cclosure_Create{0x141D3B7E0, 0x1403E48C0};
 		WEAK symbol<int(lua_State* s, int t)> hksi_luaL_ref{0x141D4D1A0, 0x1403F5CF0};
 		WEAK symbol<void(lua_State* s, int t, int ref)> hksi_luaL_unref{0x141D4D320, 0x1403F5E70};
 
-		WEAK symbol<int(lua_State* s, const HksCompilerSettings* options, const char* buff, unsigned __int64 sz, const char* name)> hksi_hksL_loadbuffer{0x141D4BD80, 0x1403F48D0};
+		WEAK symbol<int(lua_State* s, const HksCompilerSettings* options, const char* buff, unsigned __int64 sz,
+		                const char* name)> hksi_hksL_loadbuffer{0x141D4BD80, 0x1403F48D0};
 		WEAK symbol<int(lua_State* s, const char* what, lua_Debug* ar)> hksi_lua_getinfo{0x141D4D8D0, 0x1403F64B0};
 		WEAK symbol<int(lua_State* s, int level, lua_Debug* ar)> hksi_lua_getstack{0x141D4DB90, 0x1403F6770};
 		WEAK symbol<void(lua_State* s, const char* fmt, ...)> hksi_luaL_error{0x141D4D050, 0x1403F5BA0};

src/client/loader/component_interface.hpp

@@ -3,6 +3,8 @@
 enum class component_priority
 {
 	min = 0,
+	// must run after the steam_proxy
+	name,
 	// must run after the updater
 	steam_proxy,
 	updater,

src/client/steam/interfaces/friends.cpp

@@ -3,13 +3,13 @@
 
 #include <utils/nt.hpp>
 
-#include "component/steam_proxy.hpp"
+#include "component/name.hpp"
 
 namespace steam
 {
 	const char* friends::GetPersonaName()
 	{
-		return steam_proxy::get_player_name();
+		return name::get_player_name();
 	}
 
 	unsigned long long friends::SetPersonaName(const char* pchPersonaName)

src/client/updater/file_updater.cpp

@@ -380,13 +380,13 @@ namespace updater
 		legal_files.reserve(files.size());
 		for (const auto& file : files)
 		{
-			if (file.name != UPDATE_HOST_BINARY)
+			if (file.name.starts_with("data"))
 			{
 				legal_files.emplace_back(std::filesystem::absolute(base / file.name));
 			}
 		}
 
-		const auto existing_files = utils::io::list_files(base.string(), true);
+		const auto existing_files = utils::io::list_files(base / "data", true);
 		for (auto& file : existing_files)
 		{
 			const auto is_file = std::filesystem::is_regular_file(file);

src/common/utils/concurrency.hpp

@@ -39,6 +39,12 @@ namespace utils::concurrency
 		T& get_raw() { return object_; }
 		const T& get_raw() const { return object_; }
 
+		T copy() const
+		{
+			std::unique_lock<MutexType> lock{mutex_};
+			return object_;
+		}
+
 	private:
 		mutable MutexType mutex_{};
 		T object_{};

src/common/utils/named_mutex.cpp

@@ -0,0 +1,44 @@
+#include "named_mutex.hpp"
+#include "nt.hpp"
+
+namespace utils
+{
+	named_mutex::named_mutex(const std::string& name)
+	{
+		this->handle_ = CreateMutexA(nullptr, FALSE, name.data());
+	}
+
+	named_mutex::~named_mutex()
+	{
+		if (this->handle_)
+		{
+			CloseHandle(this->handle_);
+		}
+	}
+
+	void named_mutex::lock() const
+	{
+		if (this->handle_)
+		{
+			WaitForSingleObject(this->handle_, INFINITE);
+		}
+	}
+
+	bool named_mutex::try_lock(const std::chrono::milliseconds timeout) const
+	{
+		if (this->handle_)
+		{
+			return WAIT_OBJECT_0 == WaitForSingleObject(this->handle_, static_cast<DWORD>(timeout.count()));
+		}
+
+		return false;
+	}
+
+	void named_mutex::unlock() const noexcept
+	{
+		if (this->handle_)
+		{
+			ReleaseMutex(this->handle_);
+		}
+	}
+}

src/common/utils/named_mutex.hpp

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <string>
+#include <chrono>
+
+namespace utils
+{
+	class named_mutex
+	{
+	public:
+		named_mutex(const std::string& name);
+		~named_mutex();
+
+		named_mutex(named_mutex&&) = delete;
+		named_mutex(const named_mutex&) = delete;
+		named_mutex& operator=(named_mutex&&) = delete;
+		named_mutex& operator=(const named_mutex&) = delete;
+
+		void lock() const;
+		bool try_lock(std::chrono::milliseconds timeout = std::chrono::milliseconds{0}) const;
+		void unlock() const noexcept;
+
+	private:
+		void* handle_{};
+	};
+}

src/common/utils/nt.cpp

@@ -1,4 +1,7 @@
 #include "nt.hpp"
+
+#include <lmcons.h>
+
 #include "string.hpp"
 
 namespace utils::nt
@@ -234,14 +237,14 @@ namespace utils::nt
 		{
 			registry_key new_key{};
 			if (RegOpenKeyExA(current_key, part.data(), 0,
-				KEY_ALL_ACCESS, &new_key) == ERROR_SUCCESS)
+			                  KEY_ALL_ACCESS, &new_key) == ERROR_SUCCESS)
 			{
 				current_key = std::move(new_key);
 				continue;
 			}
 
 			if (RegCreateKeyExA(current_key, part.data(), 0, nullptr, REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS,
-				nullptr, &new_key, nullptr) != ERROR_SUCCESS)
+			                    nullptr, &new_key, nullptr) != ERROR_SUCCESS)
 			{
 				return {};
 			}
@@ -310,7 +313,8 @@ namespace utils::nt
 		GetCurrentDirectoryA(sizeof(current_dir), current_dir);
 		auto* const command_line = GetCommandLineA();
 
-		CreateProcessA(self.get_path().generic_string().data(), command_line, nullptr, nullptr, false, NULL, nullptr, current_dir,
+		CreateProcessA(self.get_path().generic_string().data(), command_line, nullptr, nullptr, false, NULL, nullptr,
+		               current_dir,
 		               &startup_info, &process_info);
 
 		if (process_info.hThread && process_info.hThread != INVALID_HANDLE_VALUE) CloseHandle(process_info.hThread);
@@ -322,4 +326,16 @@ namespace utils::nt
 		TerminateProcess(GetCurrentProcess(), code);
 		_Exit(code);
 	}
+
+	std::string get_user_name()
+	{
+		char username[UNLEN + 1];
+		DWORD username_len = UNLEN + 1;
+		if (!GetUserNameA(username, &username_len))
+		{
+			return {};
+		}
+
+		return std::string(username, username_len - 1);
+	}
 }

src/common/utils/nt.hpp

@@ -252,4 +252,6 @@ namespace utils::nt
 
 	void relaunch_self();
 	__declspec(noreturn) void terminate(uint32_t code = 0);
+
+	std::string get_user_name();
 }

src/common/utils/properties.cpp

@@ -0,0 +1,172 @@
+#include "properties.hpp"
+
+#include "finally.hpp"
+
+#include <rapidjson/document.h>
+#include <rapidjson/prettywriter.h>
+#include "rapidjson/filereadstream.h"
+#include "rapidjson/filewritestream.h"
+#include "rapidjson/encodedstream.h"
+
+#include "io.hpp"
+#include "com.hpp"
+#include "string.hpp"
+
+namespace utils::properties
+{
+	namespace
+	{
+		typedef rapidjson::GenericDocument<rapidjson::UTF16LE<>> WDocument;
+		typedef rapidjson::GenericValue<rapidjson::UTF16LE<>> WValue;
+
+		typedef rapidjson::EncodedOutputStream<rapidjson::UTF16LE<>, rapidjson::FileWriteStream> OutputStream;
+		typedef rapidjson::EncodedInputStream<rapidjson::UTF16LE<>, rapidjson::FileReadStream> InputStream;
+
+		std::filesystem::path get_properties_folder()
+		{
+			static auto props = get_appdata_path() / "user";
+			return props;
+		}
+
+		std::filesystem::path get_properties_file()
+		{
+			static auto props = get_properties_folder() / "properties.json";
+			return props;
+		}
+
+		WDocument load_properties()
+		{
+			WDocument default_doc{};
+			default_doc.SetObject();
+
+			char read_buffer[256]; // Raw buffer for reading
+
+			const std::wstring& props = get_properties_file();
+
+			FILE* fp;
+			auto err = _wfopen_s(&fp, props.data(), L"rb");
+			if (err || !fp)
+			{
+				return default_doc;
+			}
+
+			// This will handle the BOM
+			rapidjson::FileReadStream bis(fp, read_buffer, sizeof(read_buffer));
+			InputStream eis(bis);
+
+			WDocument doc{};
+			const rapidjson::ParseResult result = doc.ParseStream<rapidjson::kParseNoFlags, rapidjson::UTF16LE<>>(eis);
+
+			fclose(fp);
+
+			if (!result || !doc.IsObject())
+			{
+				return default_doc;
+			}
+
+			return doc;
+		}
+
+		void store_properties(const WDocument& doc)
+		{
+			char write_buffer[256]; // Raw buffer for writing
+
+			const std::wstring& props = get_properties_file();
+			io::create_directory(get_properties_folder());
+
+			FILE* fp;
+			auto err = _wfopen_s(&fp, props.data(), L"wb");
+			if (err || !fp)
+			{
+				return;
+			}
+
+			rapidjson::FileWriteStream bos(fp, write_buffer, sizeof(write_buffer));
+			OutputStream eos(bos, true); // Write BOM
+
+			rapidjson::Writer<OutputStream, rapidjson::UTF16LE<>, rapidjson::UTF16LE<>> writer(eos);
+			doc.Accept(writer);
+
+			fclose(fp);
+		}
+	}
+
+	std::filesystem::path get_appdata_path()
+	{
+		PWSTR path;
+		if (!SUCCEEDED(SHGetKnownFolderPath(FOLDERID_LocalAppData, 0, nullptr, &path)))
+		{
+			throw std::runtime_error("Failed to read APPDATA path!");
+		}
+
+		auto _ = utils::finally([&path]
+		{
+			CoTaskMemFree(path);
+		});
+
+		static auto appdata = std::filesystem::path(path) / "boiii";
+		return appdata;
+	}
+
+	std::unique_lock<named_mutex> lock()
+	{
+		static named_mutex mutex{"boiii-properties-lock"};
+		return std::unique_lock{mutex};
+	}
+
+	std::optional<std::wstring> load(const std::wstring& name)
+	{
+		const auto _ = lock();
+		const auto doc = load_properties();
+
+		if (!doc.HasMember(name))
+		{
+			return {};
+		}
+
+		const auto& value = doc[name];
+		if (!value.IsString())
+		{
+			return {};
+		}
+
+		return {std::wstring{value.GetString()}};
+	}
+
+	std::optional<std::string> load(const std::string& name)
+	{
+		const auto result = load(string::convert(name));
+		if (!result)
+		{
+			return {};
+		}
+
+		return {string::convert(*result)};
+	}
+
+	void store(const std::wstring& name, const std::wstring& value)
+	{
+		const auto _ = lock();
+		auto doc = load_properties();
+
+		while (doc.HasMember(name))
+		{
+			doc.RemoveMember(name);
+		}
+
+		WValue key{};
+		key.SetString(name, doc.GetAllocator());
+
+		WValue member{};
+		member.SetString(value, doc.GetAllocator());
+
+		doc.AddMember(key, member, doc.GetAllocator());
+
+		store_properties(doc);
+	}
+
+	void store(const std::string& name, const std::string& value)
+	{
+		store(string::convert(name), string::convert(value));
+	}
+}

src/common/utils/properties.hpp

@@ -0,0 +1,19 @@
+#pragma once
+
+#include "named_mutex.hpp"
+#include <mutex>
+#include <optional>
+#include <filesystem>
+
+namespace utils::properties
+{
+	std::filesystem::path get_appdata_path();
+
+	std::unique_lock<named_mutex> lock();
+
+	std::optional<std::wstring> load(const std::wstring& name);
+	std::optional<std::string> load(const std::string& name);
+
+	void store(const std::wstring& name, const std::wstring& value);
+	void store(const std::string& name, const std::string& value);
+}